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Agglutination of human and animal erythrocytes in marine unicellular algae
Authors:W-R Liao  R Huang
Institution:(1) Institute of Oceanography, National Taiwan University, Taipei 100, Taiwan, TW
Abstract:Ethanol extracts of 12 marine unicellular algae were assayed for agglutinating activity against native and enzyme-treated human and animal erythrocytes. All of the algae assayed agglutinated at least one group of normal erythrocytes from humans. Notably, all algal extracts agglutinated erythrocytes of hemophilia patients arising from coagulation disorders. Meanwhile, all algae had a strong reaction with monkey erythrocytes, but to a lesser extent or not at all with sheep erythrocytes. Both trypsin and pronase improved the detection of most algal agglutinins and caused a drastic increase in hemagglutinating activity after treatment for 2 h or more. However, hemagglutinating activity decreased or disappeared completely when two extracts of different algal species were combined. Journal of Industrial Microbiology & Biotechnology (2000) 24, 262–266. Received 24 September 1999/ Accepted in revised form 06 January 2000
Keywords:: agglutinating activity  marine unicellular algae  erythrocytes  enzymes
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